Merge pull request #82 from dylanaraps/image_size

Font size is now calculated by fetch
This commit is contained in:
Dylan Araps 2016-02-19 23:31:21 +11:00
commit 09c65e59a1
3 changed files with 41 additions and 43 deletions

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@ -63,18 +63,17 @@ your distro's logo or any ascii art of your choice!
## Dependencies
### Required dependencies:
- `Bash 4.0+`
- `xprop` \[3\]
- `xprop` \[1\]
- `procps-ng`
- Not required on OS X
### Optional dependencies:
- Displaying images: `w3m-img` \[1\] or `iTerm2` \[2\]
- Displaying images: `w3m-img` \[2\] \[3\] or `iTerm2` \[4\]
- Thumbnail creation: `imagemagick`
##### Linux / BSD
@ -82,16 +81,20 @@ your distro's logo or any ascii art of your choice!
- Wallpaper: `feh`, `nitrogen` or `gsettings`
- Current Song: `mpc` or `cmus`
- Resolution: `xorg-xdpyinfo`
- Screenshot: `scrot` \[4\]
- Screenshot: `scrot` \[5\]
\[1\] `w3m-img` is sometimes bundled together with `w3m`.
\[2\] You can enable the `iTerm2` image backend by using the launch flag `--image_backend iterm2` or by<br \>
\[1\] See **[#79](https://github.com/dylanaraps/fetch/issues/79)** about why this is now a required dependency.
\[2\] `w3m-img` is sometimes bundled together with `w3m`.
\[3\] Image support only works in certain terminal emulators. The script will fallback to ascii mode on<br \>
terminal emulators that don't support the xterm escape sequences we're using for image sizing.
\[4\] You can enable the `iTerm2` image backend by using the launch flag `--image_backend iterm2` or by<br \>
changing the config option `$image_backend` to `iterm2`.
\[3\] See **[#79](https://github.com/dylanaraps/fetch/issues/79)** about why this is now a required dependency.
\[4\] You can use the launch flag `--scrot_cmd` or change the config option `$scrot_cmd` to your screenshot<br \>
\[5\] You can use the launch flag `--scrot_cmd` or change the config option `$scrot_cmd` to your screenshot<br \>
program's cmd and fetch will use it instead of scrot.
@ -170,19 +173,6 @@ You can launch the script without a config file by using the flag `--config none
specify a custom config location using `--config path/to/config`.
#### Sizing the image correctly
**NOTE:** For the images to be sized correctly you need to set the `$font_width` variable.<br \>
If you don't know your font width in pixels keep trying values until the image is half the<br \>
terminal width.
Once `font_width` is set the image will by default take up half the terminal width. You can<br \>
use the launch flag `--size px` or change the config option `$image_size` to set it to a custom<br \>
size in pixels.
You can also use the launch flag `--font_width` to set it on the fly.
#### Setting the prompt height
If your shell prompt's height is greater than 1 line high, you'll need to change a config<br \>
@ -290,7 +280,6 @@ alias fetch2="fetch \
--size px Size in pixels to make the image.
--image_backend w3m/iterm2 Which program to use to draw images.
--shuffle_dir path/to/dir Which directory to shuffle for an image.
--font_width px Used to automatically size the image
--image_position left/right Where to display the image: (Left/Right)
--crop_mode mode Which crop mode to use
Takes the values: normal, fit, fill

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@ -267,15 +267,10 @@ crop_mode="normal"
# east/southwest/south/southeast
crop_offset="center"
# Font width
# --font_width num
# Used when calculating dynamic image size
font_width=5
# Image size
# The image is half the terminal width by default.
# --size half, px
image_size="half"
# --size auto, px
image_size="auto"
# Right gap between image and text
# --gap num

40
fetch
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@ -285,15 +285,10 @@ crop_mode="normal"
# east/southwest/south/southeast
crop_offset="center"
# Font width
# Used when calculating dynamic image size
# --font_width num
font_width=5
# Image size
# The image is half the terminal width by default.
# --size half, px
image_size="half"
# --size auto, px
image_size="auto"
# Right gap between image and text
# --gap num
@ -1882,8 +1877,21 @@ getimage () {
;;
esac
# If $img isn't a file, fallback to ascii mode.
if [ ! -f "$img" ]; then
# Get terminal width and height
printf "%b%s" '\033[14t'
index=0
while IFS= read -s -r -n 1 -t 0.25 char; do
case "$index" in
"0") [ "$char" == ";" ] && index=$((index + 1)) ;;
"1") [ "$char" == ";" ] && index=$((index + 1)) || term_height="${term_height}${char}" ;;
"2") [ "$char" == "t" ] && break || term_width="${term_width}${char}"
esac
done
# If $img isn't a file or the terminal doesn't support xterm escape sequences,
# fallback to ascii mode.
if [ ! -f "$img" ] || [ -z "$term_height" ]; then
# Fallback to ascii mode
image="ascii"
getascii
@ -1891,14 +1899,22 @@ getimage () {
return
fi
# Get lines and columns
# Get terminal lines and columns
columns=$(tput cols)
lines=$(tput lines)
# Calculate font size
font_width=$((term_width / columns))
font_height=$((term_height / lines))
# Image size is half of the terminal
[ "$image_size" == "half" ] && \
if [ "$image_size" == "auto" ]; then
image_size=$((columns * font_width / 2))
[ "$((term_height - term_height / 4))" -lt "$image_size" ] && \
image_size=$((term_height - term_height / 4))
fi
# Where to draw the image
case "$image_position" in
"left")
@ -2334,7 +2350,6 @@ usage () { cat << EOF
--size px Size in pixels to make the image.
--image_backend w3m/iterm2 Which program to use to draw images.
--shuffle_dir path/to/dir Which directory to shuffle for an image.
--font_width px Used to automatically size the image
--image_position left/right Where to display the image: (Left/Right)
--crop_mode mode Which crop mode to use
Takes the values: normal, fit, fill
@ -2449,7 +2464,6 @@ while [ "$1" ]; do
--size) image_size="$2" ;;
--image_backend) image_backend="$2" ;;
--shuffle_dir) shuffle_dir="$2" ;;
--font_width) font_width="$2" ;;
--image_position) image_position="$2" ;;
--crop_mode) crop_mode="$2" ;;
--crop_offset) crop_offset="$2" ;;